package com.mall.concurrency.commonUnsafe;

import lombok.extern.slf4j.Slf4j;
import org.joda.time.DateTime;
import org.joda.time.format.DateTimeFormat;
import org.joda.time.format.DateTimeFormatter;

import java.util.concurrent.CountDownLatch;
import java.util.concurrent.ExecutorService;
import java.util.concurrent.Executors;
import java.util.concurrent.Semaphore;

/**
 * @Author:zwy
 * @Despriction:
 * @Date:Create in 20:50 2018/5/29
 * @Modify By:
 */
@Slf4j
public class DateFormatExample3 {
    private static DateTimeFormatter dateTimeFormatter = DateTimeFormat.forPattern("yyyyMMdd");
    //请求总数
    public static  int clientToatal  =5000;
    //同时并发执行的线程数量
    public static int threadTotal =200;
    public static void main(String[] args) throws InterruptedException {
        ExecutorService executorService = Executors.newCachedThreadPool();
        final Semaphore semaphore = new Semaphore(threadTotal);
        final CountDownLatch countDownLatch = new CountDownLatch(clientToatal);
        for(int i=0;i<clientToatal;i++){
            final int count = i;
            executorService.execute(()->{
                try {
                    semaphore.acquire();
                    update(count);
                    semaphore.release();
                } catch (Exception e) {
                    e.printStackTrace();
                }
                countDownLatch.countDown();
            });

        }
        countDownLatch.await();
        executorService.shutdown();
    }

    private static void update(int i){
        log.info("{},{}",i,DateTime.parse("20180208",dateTimeFormatter).toDate());

    }

}
